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參數(shù)資料
| 型號： | 100329QI |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Low Power Octal ECL/TTL Bidirectional Translator with Register |
| 中文描述： | TTL TO ECL TRANSCEIVER, TRUE OUTPUT, PQCC28 |
| 封裝： | 0.450 X 0.450 INCH, PLASTIC, MO-047, LCC-28 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 242K |
| 代理商： | 100329QI |
100329
Low Power Octal ECL/TTL Bidirectional Translator with
Register
General Description
The 100329 is an octal registered bidirectional translator de-
signed to convert TTL logic levels to 100K ECL logic levels
and vice versa. The direction of the translation is determined
by the DIR input. A LOW on the output enable input (OE)
holds the ECL outputs in a cut-off state and the TTL outputs
at a high impedance level. The outputs change synchro-
nously with the rising edge of the clock input (CP) even
though only one output is enabled at the time.
The cut-off state is designed to be more negative than a nor-
mal ECL LOW level. This allows the output emitter-followers
to turn off when the termination supply is 2.0V, presenting a
high impedance to the data bus. This high impedance re-
duces the termination power and prevents loss of low state
noise margin when several loads share the bus.
The 100329 is designed with FAST
TTL output buffers, fea-
turing optimal DC drive and capable of quickly charging and
discharging highly capacitive loads. All inputs have 50 k
pull-down resistors.
Features
n
Bidirectional translation
n
ECL high impedance outputs
n
Registered outputs
n
FAST TTL outputs
n
TRI-STATE
outputs
n
Voltage compensated operating range = 4.2V to 5.7V
n
Standard Microcircuit Drawing
(SMD) 5962-9206601
Connection Diagrams
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
FAST
is a registered trademark of Fairchild Semiconductor.
24-Pin DIP
DS100306-2
24-Pin Quad Cerpack
DS100306-4
September 1999
1
1999 National Semiconductor Corporation
DS100306
www.national.com
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